This insulator is a CD 132 embossed on the crown; "PAT. DEC. 19, 1871" and "2" on the back crown with a "B" on the skirt. It is a green aqua color. The insulator has 2 open bubbles in the back wire groove, a 3/4" long crack in the rear skirt, and a 1 3/4" thin flat base chip in the front. Displays well as shown in the photos. Priced at $50.00 plus shipping.